Article # 13
A Bilateral Variation in the Origin of the Superior Laryngeal Artery : A Case Report
Abstract
Introduction
Article # 13
A Bilateral Variation in the Origin of the Superior Laryngeal Artery : A Case Report
Authors :
Jihad S . Hawi , Laura Dosh , Myriam F . Ghossein , Raymonde R . Dahdouh , Hisham Daouk and Abdo Jurjus
Keywords :
Superior Laryngeal artery , Lingual artery , External Carotid artery , bilateral variation , laryngeal surgery
Institution :
Jihad S , Hawi , Myriam F Ghossein , Raymonde R . Dahdouh Faculty of Medicine and Medical Sciences , University of Balamand , Al Kurah , Lebanon .
Laura Dosh , Hisham Daouk , Abdo Jurjus Dept . of Anatomy , Cell Biology and Physiological Sciences , Faculty of Medicine , American University of Beirut , Beirut Lebanon .
Corresponding Author Contact Information :
Jihad S . Hawi Faculty of Medicine , Balamand University , Al Kurah , Lebnaon Tel : + 9613601558 Email : Jihad . Hawi @ balamand . edu . lb
DOI : https :// doi . org / 10.21252 / 74a1-1641
Abstract
INTRODUCTION
Arterial supply to the neck is subject to a great spectrum of variations of which some are very rare .
PURPOSE
To describe a rare bilateral variation in the origin of the superior laryngeal artery and highlights its clinical relevance .
METHOD
The variation was encountered for the first-time during a thorough dissection of the neck region of a formalin embalmed 70-year-old Caucasian female cadaver for educational purposes . It was described and documented using digital photography .
RESULTS
The superior laryngeal artery , in both hemi-necks , took unusual branching patterns . In the right hemi-neck , the superior laryngeal artery arose from the lingual artery , 1.2 cm distal from the branching origin of the latter from the external carotid artery . As for the left hemi-neck , the superior laryngeal artery branched directly out of the external carotid artery , 1 cm superior to the branching of the superior thyroid artery and 1.5 cm inferior to the origin of the lingual artery . On both sides , they followed their destinations to perforate the thyrohyoid membrane and supply the larynx .
CONCLUSION
These bilateral variations , in the same body , for the origin of the superior laryngeal artery are described for the first time . Awareness of such variations helps in avoiding unnecessary complications following surgical interventions in the laryngeal area .
Introduction
Blood supply to the neck is subject to a wide spectrum of variations in the venous drainage seconded by the arterial supply which originates , to a great extent , from the external carotid artery ( ECA ) and its branches ( Tubbs , et al ., 2016 ) .